A new FIR filter technique for solvent suppression in MRS signals.
A large water resonance is usually present in MRS signals. Time-domain quantitation methods require a good suppression of these components in order to obtain accurate parameter estimates. In this paper, we analyze one of the most successful methods for solvent suppression, the maximum-phase finite impulse response filter (MP-FIR), and identify its drawbacks. A new filtering method is proposed to overcome the limitation of MP-FIR.
Poullet
Jean-Baptiste
JB
Department of Electrical Engineering, SCD-SISTA, Katholieke Universiteit Leuven, Leuven, Belgium. jean-baptiste.poullet@esat.kuleuven.be
Pintelon
Rik
R
Van Huffel
Sabine
S
D000465:Algorithms; D016477:Artifacts; D003198:Computer Simulation; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008956:Models, Chemical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D012997:Solvents / Q000737:chemistry*
D012997:Solvents